forked from serverless/serverless
/
awsProvider.js
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/
awsProvider.js
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'use strict';
const AWS = require('aws-sdk');
const BbPromise = require('bluebird');
const HttpsProxyAgent = require('https-proxy-agent');
const url = require('url');
const chalk = require('chalk');
const _ = require('lodash');
const naming = require('../lib/naming.js');
const https = require('https');
const fs = require('fs');
const objectHash = require('object-hash');
const PromiseQueue = require('promise-queue');
const getS3EndpointForRegion = require('../utils/getS3EndpointForRegion');
const readline = require('readline');
const isLambdaArn = RegExp.prototype.test.bind(/^arn:[^:]+:lambda:/);
const constants = {
providerName: 'aws',
};
PromiseQueue.configure(BbPromise.Promise);
const MAX_RETRIES = (() => {
const userValue = Number(process.env.SLS_AWS_REQUEST_MAX_RETRIES);
return userValue >= 0 ? userValue : 4;
})();
const impl = {
/**
* Determine whether the given credentials are valid. It turned out that detecting invalid
* credentials was more difficult than detecting the positive cases we know about. Hooray for
* whak-a-mole!
* @param credentials The credentials to test for validity
* @return {boolean} Whether the given credentials were valid
*/
validCredentials: credentials => {
let result = false;
if (credentials) {
if (
// valid credentials loaded
(credentials.accessKeyId &&
credentials.accessKeyId !== 'undefined' &&
credentials.secretAccessKey &&
credentials.secretAccessKey !== 'undefined') ||
// a role to assume has been successfully loaded, the associated STS request has been
// sent, and the temporary credentials will be asynchronously delivered.
credentials.roleArn
) {
result = true;
}
}
return result;
},
/**
* Add credentials, if present, to the given results
* @param results The results to add the given credentials to if they are valid
* @param credentials The credentials to validate and add to the results if valid
*/
addCredentials: (results, credentials) => {
if (impl.validCredentials(credentials)) {
results.credentials = credentials; // eslint-disable-line no-param-reassign
}
},
/**
* Add credentials, if present, from the environment
* @param results The results to add environment credentials to
* @param prefix The environment variable prefix to use in extracting credentials
*/
addEnvironmentCredentials: (results, prefix) => {
if (prefix) {
const environmentCredentials = new AWS.EnvironmentCredentials(prefix);
impl.addCredentials(results, environmentCredentials);
}
},
/**
* Add credentials from a profile, if the profile and credentials for it exists
* @param results The results to add profile credentials to
* @param profile The profile to load credentials from
*/
addProfileCredentials: (results, profile) => {
if (profile) {
const params = { profile };
if (process.env.AWS_SHARED_CREDENTIALS_FILE) {
params.filename = process.env.AWS_SHARED_CREDENTIALS_FILE;
}
// Setup a MFA callback for asking the code from the user.
params.tokenCodeFn = (mfaSerial, callback) => {
const rl = readline.createInterface({ input: process.stdin, output: process.stdout });
rl.question(`Enter MFA code for ${mfaSerial}: `, answer => {
rl.close();
callback(null, answer);
});
};
const profileCredentials = new AWS.SharedIniFileCredentials(params);
if (
!(
profileCredentials.accessKeyId ||
profileCredentials.sessionToken ||
profileCredentials.roleArn
)
) {
throw new Error(`Profile ${profile} does not exist`);
}
impl.addCredentials(results, profileCredentials);
}
},
/**
* Add credentials, if present, from a profile that is specified within the environment
* @param results The prefix of the profile's declaration in the environment
* @param prefix The prefix for the environment variable
*/
addEnvironmentProfile: (results, prefix) => {
if (prefix) {
const profile = process.env[`${prefix}_PROFILE`];
impl.addProfileCredentials(results, profile);
}
},
};
class AwsProvider {
static getProviderName() {
return constants.providerName;
}
constructor(serverless, options) {
this.naming = { provider: this };
this.options = options;
this.provider = this; // only load plugin in an AWS service context
this.serverless = serverless;
this.sdk = AWS;
this.serverless.setProvider(constants.providerName, this);
if (this.serverless.service.provider.name === 'aws') {
this.serverless.service.provider.region = this.getRegion();
require('../../../utils/awsSdkPatch');
// TODO: Complete schema, see https://github.com/serverless/serverless/issues/8016
serverless.configSchemaHandler.defineProvider('aws', {
definitions: {
awsArn: {
oneOf: [
{ $ref: '#/definitions/awsArnString' },
{ $ref: '#/definitions/awsCfFunction' },
],
},
awsArnString: {
type: 'string',
pattern: '^arn:',
},
awsCfFunction: {
oneOf: [
{ $ref: '#/definitions/awsCfImport' },
{ $ref: '#/definitions/awsCfJoin' },
{ $ref: '#/definitions/awsCfGetAtt' },
{ $ref: '#/definitions/awsCfRef' },
{ $ref: '#/definitions/awsCfSub' },
],
},
awsCfGetAtt: {
type: 'object',
properties: {
'Fn::GetAtt': {
type: 'array',
minItems: 2,
maxItems: 2,
items: { type: 'string', minLength: 1 },
},
},
required: ['Fn::GetAtt'],
additionalProperties: false,
},
awsCfImport: {
type: 'object',
properties: {
'Fn::ImportValue': {},
},
additionalProperties: false,
required: ['Fn::ImportValue'],
},
awsCfImportLocallyResolvable: {
type: 'object',
properties: {
'Fn::ImportValue': { type: 'string' },
},
additionalProperties: false,
required: ['Fn::ImportValue'],
},
awsCfInstruction: {
oneOf: [{ type: 'string', minLength: 1 }, { $ref: '#/definitions/awsCfFunction' }],
},
awsCfJoin: {
type: 'object',
properties: {
'Fn::Join': {
type: 'array',
minItems: 2,
maxItems: 2,
items: [{ type: 'string', minLength: 1 }, { type: 'array' }],
additionalItems: false,
},
},
required: ['Fn::Join'],
additionalProperties: false,
},
awsCfRef: {
type: 'object',
properties: {
Ref: { type: 'string', minLength: 1 },
},
required: ['Ref'],
additionalProperties: false,
},
awsCfSub: {
type: 'object',
properties: {
'Fn::Sub': {},
},
required: ['Fn::Sub'],
additionalProperties: false,
},
awsLambdaEnvironment: {
type: 'object',
patternProperties: {
'^[A-Za-z_][a-zA-Z0-9_]*$': {
anyOf: [
{ type: 'string' },
{ $ref: '#/definitions/awsCfImport' },
{ $ref: '#/definitions/awsCfRef' },
],
},
},
additionalProperties: false,
},
awsLambdaLayers: {
type: 'array',
items: { $ref: '#/definitions/awsArn' },
},
awsLambdaMemorySize: { type: 'integer', multipleOf: 64, minimum: 128, maximum: 3008 },
awsLambdaRole: {
anyOf: [
{ type: 'string', minLength: 1 },
{ $ref: '#/definitions/awsCfImport' },
{ $ref: '#/definitions/awsCfGetAtt' },
],
},
awsLambdaRuntime: {
enum: [
'dotnetcore2.1',
'dotnetcore3.1',
'go1.x',
'java11',
'java8',
'java8.al2',
'nodejs10.x',
'nodejs12.x',
'provided',
'provided.al2',
'python2.7',
'python3.6',
'python3.7',
'python3.8',
'ruby2.5',
'ruby2.7',
],
},
awsLambdaTimeout: { type: 'integer', minimum: 1, maximum: 900 },
awsLambdaTracing: { anyOf: [{ enum: ['Active', 'PassThrough'] }, { type: 'boolean' }] },
awsLambdaVersionning: { type: 'boolean' },
awsLambdaVpcConfig: {
type: 'object',
properties: {
securityGroupIds: {
type: 'array',
items: {
type: 'string',
},
maxItems: 5,
},
subnetIds: {
type: 'array',
items: {
type: 'string',
},
maxItems: 16,
},
},
},
awsResourceCondition: { type: 'string' },
awsResourceDependsOn: {
oneOf: [{ type: 'string' }, { type: 'array', items: { type: 'string' } }],
},
awsResourceProperties: {
Properties: { type: 'object' },
CreationPolicy: { type: 'object' },
DeletionPolicy: { type: 'string' },
DependsOn: { $ref: '#/definitions/awsResourceDependsOn' },
Metadata: { type: 'object' },
UpdatePolicy: { type: 'object' },
UpdateReplacePolicy: { type: 'string' },
Condition: { $ref: '#/definitions/awsResourceCondition' },
},
awsResourceTags: {
type: 'object',
patternProperties: {
'^(?!aws:)[\\w./=+-]{1,128}$': {
type: 'string',
pattern: '^(?!aws:)[\\w./=+-]*$',
maxLength: 256,
},
},
additionalProperties: false,
},
awsLogGroupName: {
type: 'string',
pattern: '^[/#A-Za-z0-9-_.]+$',
},
},
provider: {
properties: {
apiGateway: { type: 'object', properties: { websocketApiId: { type: 'string' } } },
environment: { $ref: '#/definitions/awsLambdaEnvironment' },
httpApi: {
type: 'object',
properties: {
authorizers: {
type: 'object',
additionalProperties: {
type: 'object',
properties: {
name: { type: 'string' },
identitySource: { $ref: '#/definitions/awsCfInstruction' },
issuerUrl: { $ref: '#/definitions/awsCfInstruction' },
audience: {
oneOf: [
{ $ref: '#/definitions/awsCfInstruction' },
{
type: 'array',
items: { $ref: '#/definitions/awsCfInstruction' },
additionalItems: false,
},
],
},
},
required: ['identitySource', 'issuerUrl', 'audience'],
additionalProperties: false,
},
},
cors: {
oneOf: [
{ type: 'boolean' },
{
type: 'object',
properties: {
allowCredentials: { type: 'boolean' },
allowedHeaders: {
oneOf: [{ type: 'string' }, { type: 'array', items: { type: 'string' } }],
},
allowedMethods: {
oneOf: [{ type: 'string' }, { type: 'array', items: { type: 'string' } }],
},
allowedOrigins: {
oneOf: [{ type: 'string' }, { type: 'array', items: { type: 'string' } }],
},
exposedResponseHeaders: {
oneOf: [{ type: 'string' }, { type: 'array', items: { type: 'string' } }],
},
maxAge: { type: 'integer', minimum: 0 },
},
additionalProperties: false,
},
],
},
id: {
oneOf: [
{ type: 'string' },
{ $ref: '#/definitions/awsCfImportLocallyResolvable' },
],
},
name: { type: 'string' },
payload: { type: 'string' },
},
additionalProperties: false,
},
kmsKeyArn: { $ref: '#/definitions/awsKmsArn' },
layers: { $ref: '#/definitions/awsLambdaLayers' },
logs: {
type: 'object',
properties: {
httpApi: {
oneOf: [
{ type: 'boolean' },
{
type: 'object',
properties: {
format: { type: 'string' },
},
additionalProperties: false,
},
],
},
websocket: {
oneOf: [
{ type: 'boolean' },
{
type: 'object',
properties: {
level: { enum: ['INFO', 'ERROR'] },
},
additionalProperties: false,
},
],
},
},
},
memorySize: { $ref: '#/definitions/awsLambdaMemorySize' },
resourcePolicy: {
type: 'array',
items: {
type: 'object',
},
},
role: { $ref: '#/definitions/awsLambdaRole' },
runtime: { $ref: '#/definitions/awsLambdaRuntime' },
tags: { $ref: '#/definitions/awsResourceTags' },
timeout: { $ref: '#/definitions/awsLambdaTimeout' },
tracing: {
type: 'object',
properties: {
apiGateway: { type: 'boolean' },
lambda: { $ref: '#/definitions/awsLambdaTracing' },
},
additionalProperties: false,
},
vpc: { $ref: '#/definitions/awsLambdaVpcConfig' },
versionFunctions: { $ref: '#/definitions/awsLambdaVersionning' },
websocketsApiName: { type: 'string' },
websocketsApiRouteSelectionExpression: { type: 'string' },
},
},
function: {
properties: {
awsKmsKeyArn: { $ref: '#/definitions/awsKmsArn' },
condition: { $ref: '#/definitions/awsResourceCondition' },
dependsOn: { $ref: '#/definitions/awsResourceDependsOn' },
description: { type: 'string', maxLength: 256 },
disableLogs: { type: 'boolean' },
environment: { $ref: '#/definitions/awsLambdaEnvironment' },
fileSystemConfig: {
type: 'object',
properties: {
arn: {
oneOf: [
{
type: 'string',
pattern:
'^arn:aws[a-zA-Z-]*:elasticfilesystem:[a-z]{2}((-gov)|(-iso(b?)))?-[a-z]+-[1-9]{1}:[0-9]{12}:access-point/fsap-[a-f0-9]{17}$',
},
{ $ref: '#/definitions/awsCfGetAtt' },
{ $ref: '#/definitions/awsCfJoin' },
{ $ref: '#/definitions/awsCfImport' },
],
},
localMountPath: { type: 'string', pattern: '^/mnt/[a-zA-Z0-9-_.]+$' },
},
additionalProperties: false,
required: ['localMountPath', 'arn'],
},
handler: { type: 'string' },
kmsKeyArn: { $ref: '#/definitions/awsKmsArn' },
layers: { $ref: '#/definitions/awsLambdaLayers' },
memorySize: { $ref: '#/definitions/awsLambdaMemorySize' },
onError: {
oneOf: [
{ type: 'string', pattern: '^arn:aws[a-z-]*:sns' },
{ $ref: '#/definitions/awsCfFunction' },
],
},
package: {
type: 'object',
properties: {
artifact: { type: 'string' },
exclude: { type: 'array', items: { type: 'string' } },
include: { type: 'array', items: { type: 'string' } },
individually: { type: 'boolean' },
},
additionalProperties: false,
},
provisionedConcurrency: { type: 'integer', minimum: 1 },
reservedConcurrency: { type: 'integer', minimum: 0 },
role: { $ref: '#/definitions/awsLambdaRole' },
runtime: { $ref: '#/definitions/awsLambdaRuntime' },
tags: { $ref: '#/definitions/awsResourceTags' },
timeout: { $ref: '#/definitions/awsLambdaTimeout' },
tracing: { $ref: '#/definitions/awsLambdaTracing' },
versionFunction: { $ref: '#/definitions/awsLambdaVersionning' },
vpc: { $ref: '#/definitions/awsLambdaVpcConfig' },
},
additionalProperties: false,
},
resources: {
properties: {
AWSTemplateFormatVersion: {
type: 'string',
},
Conditions: {
type: 'object',
},
Description: {
type: 'string',
},
Mappings: {
type: 'object',
},
Metadata: {
type: 'object',
},
// According to https://s3.amazonaws.com/cfn-resource-specifications-us-east-1-prod/schemas/2.15.0/all-spec.json
// `Outputs` is just an "object", though it seems like this is under-specifying that section a bit.
// See also https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/outputs-section-structure.html
Outputs: {
type: 'object',
},
Parameters: {
type: 'object',
},
// Not replicating the full JSON schema from https://s3.amazonaws.com/cfn-resource-specifications-us-east-1-prod/schemas/2.15.0/all-spec.json
// as that gets into the specifics for each resource type.
//
// The only required attribute is `Type`; `Properties` and other common attributes are optional.
// See also https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/resources-section-structure.html
Resources: {
type: 'object',
patternProperties: {
'^[a-zA-Z0-9]{1,255}$': {
type: 'object',
properties: {
$ref: '#/definitions/awsResourceProperties',
},
additionalProperties: {
Type: { type: 'string' },
},
},
},
additionalProperties: false,
},
Transform: {
type: 'array',
items: { type: 'string' },
},
extensions: {
type: 'object',
patternProperties: {
// names have the same restrictions as CloudFormation Resources section
'^[a-zA-Z0-9]{1,255}$': {
type: 'object',
// this lists the supported properties, other properties are "Not supported. An error will be thrown
// if you try to extend an unsupported attribute."
// this is different than the above schema for `Resources`, which allows the `Type` attribute.
// extensions are explicitly meant to extend the definition of existing resources.
properties: {
$ref: '#/definitions/awsResourceProperties',
},
additionalProperties: false,
},
},
additionalProperties: false,
},
},
additionalProperties: false,
},
});
}
this.requestCache = {};
this.requestQueue = new PromiseQueue(2, Infinity);
// Store credentials in this variable to avoid creating them several times (messes up MFA).
this.cachedCredentials = null;
Object.assign(this.naming, naming);
// Activate AWS SDK logging
if (process.env.SLS_DEBUG) {
AWS.config.logger = this.serverless.cli;
}
// Use HTTPS Proxy (Optional)
const proxy =
process.env.proxy ||
process.env.HTTP_PROXY ||
process.env.http_proxy ||
process.env.HTTPS_PROXY ||
process.env.https_proxy;
const proxyOptions = {};
if (proxy) {
Object.assign(proxyOptions, url.parse(proxy));
}
const ca = process.env.ca || process.env.HTTPS_CA || process.env.https_ca;
let caCerts = [];
if (ca) {
// Can be a single certificate or multiple, comma separated.
const caArr = ca.split(',');
// Replace the newline -- https://stackoverflow.com/questions/30400341
caCerts = caCerts.concat(caArr.map(cert => cert.replace(/\\n/g, '\n')));
}
const cafile = process.env.cafile || process.env.HTTPS_CAFILE || process.env.https_cafile;
if (cafile) {
// Can be a single certificate file path or multiple paths, comma separated.
const caPathArr = cafile.split(',');
caCerts = caCerts.concat(caPathArr.map(cafilePath => fs.readFileSync(cafilePath.trim())));
}
if (caCerts.length > 0) {
Object.assign(proxyOptions, {
rejectUnauthorized: true,
ca: caCerts,
});
}
// Passes also certifications
if (proxy) {
AWS.config.httpOptions.agent = new HttpsProxyAgent(proxyOptions);
} else if (proxyOptions.ca) {
// Update the agent -- http://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/node-registering-certs.html
AWS.config.httpOptions.agent = new https.Agent(proxyOptions);
}
// Configure the AWS Client timeout (Optional). The default is 120000 (2 minutes)
const timeout = process.env.AWS_CLIENT_TIMEOUT || process.env.aws_client_timeout;
if (timeout) {
AWS.config.httpOptions.timeout = parseInt(timeout, 10);
}
// Support deploymentBucket configuration as an object
const provider = this.serverless.service.provider;
if (provider && provider.deploymentBucket) {
if (_.isObject(provider.deploymentBucket)) {
// store the object in a new variable so that it can be reused later on
provider.deploymentBucketObject = provider.deploymentBucket;
if (provider.deploymentBucket.name) {
// (re)set the value of the deploymentBucket property to the name (which is a string)
provider.deploymentBucket = provider.deploymentBucket.name;
} else {
provider.deploymentBucket = null;
}
}
}
}
/**
* Execute an AWS request by calling the AWS SDK
* @param {string} service - Service name
* @param {string} method - Method name
* @param {Object} params - Parameters
* @param {Object} [options] - Options to modify the request behavior
* @prop [options.useCache] - Utilize cache to retrieve results
* @prop [options.region] - Specify when to request to different region
*/
request(service, method, params, options) {
const that = this;
const credentials = Object.assign({}, that.getCredentials());
credentials.region = this.getRegion();
// Make sure options is an object (honors wrong calls of request)
const requestOptions = _.isObject(options) ? options : {};
const shouldCache = _.get(requestOptions, 'useCache', false);
const paramsWithRegion = _.merge({}, params, {
region: _.get(options, 'region'),
});
const paramsHash = objectHash.sha1(paramsWithRegion);
const BASE_BACKOFF = 5000;
const persistentRequest = f =>
new BbPromise((resolve, reject) => {
const doCall = numTry => {
f()
// We're resembling if/else logic, therefore single `then` instead of `then`/`catch` pair
.then(resolve, e => {
const { providerError } = e;
if (
numTry < MAX_RETRIES &&
providerError &&
((providerError.retryable &&
providerError.statusCode !== 403 &&
providerError.code !== 'CredentialsError') ||
providerError.statusCode === 429)
) {
const nextTryNum = numTry + 1;
const jitter = Math.random() * 3000 - 1000;
// backoff is between 4 and 7 seconds
const backOff = BASE_BACKOFF + jitter;
that.serverless.cli.log(
[
`Recoverable error occurred (${e.message}), sleeping for ~${Math.round(
backOff / 1000
)} seconds.`,
`Try ${nextTryNum} of ${MAX_RETRIES}`,
].join(' ')
);
setTimeout(doCall, backOff, nextTryNum);
} else {
reject(e);
}
});
};
return doCall(0);
});
// Emit a warning for misuses of the old signature including stage and region
// TODO: Determine calling module and log that
if (process.env.SLS_DEBUG && options != null && !_.isObject(options)) {
this.serverless.cli.log('WARNING: Inappropriate call of provider.request()');
}
// Support S3 Transfer Acceleration
if (this.canUseS3TransferAcceleration(service, method)) {
this.enableS3TransferAcceleration(credentials);
}
if (shouldCache) {
const cachedRequest = _.get(this.requestCache, `${service}.${method}.${paramsHash}`);
if (cachedRequest) {
return BbPromise.resolve(cachedRequest);
}
}
const request = this.requestQueue.add(() =>
persistentRequest(() => {
if (options && options.region) {
credentials.region = options.region;
}
const Service = _.get(that.sdk, service);
const awsService = new Service(credentials);
const req = awsService[method](params);
// TODO: Add listeners, put Debug statements here...
// req.on('send', function (r) {console.log(r)});
const promise = req.promise
? req.promise()
: BbPromise.fromCallback(cb => {
req.send(cb);
});
return promise.catch(err => {
let message = err.message != null ? err.message : err.code;
if (message.startsWith('Missing credentials in config')) {
// Credentials error
// If failed at last resort (EC2 Metadata check) expose a meaningful error
// with link to AWS documentation
// Otherwise, it's likely that user relied on some AWS creds, which appeared not correct
// therefore expose an AWS message directly
let bottomError = err;
while (bottomError.originalError && !bottomError.message.startsWith('EC2 Metadata')) {
bottomError = bottomError.originalError;
}
const errorMessage = bottomError.message.startsWith('EC2 Metadata')
? [
'AWS provider credentials not found.',
' Learn how to set up AWS provider credentials',
` in our docs here: <${chalk.green('http://slss.io/aws-creds-setup')}>.`,
].join('')
: bottomError.message;
message = errorMessage;
// We do not want to trigger the retry mechanism for credential errors
return BbPromise.reject(
Object.assign(new this.serverless.classes.Error(errorMessage), {
providerError: Object.assign({}, err, { retryable: false }),
})
);
}
return BbPromise.reject(
Object.assign(new this.serverless.classes.Error(message), {
providerError: err,
})
);
});
}).then(data => {
const result = BbPromise.resolve(data);
if (shouldCache) {
_.set(this.requestCache, `${service}.${method}.${paramsHash}`, result);
}
return result;
})
);
if (shouldCache) {
_.set(this.requestCache, `${service}.${method}.${paramsHash}`, request);
}
return request;
}
/**
* Fetch credentials directly or using a profile from serverless yml configuration or from the
* well known environment variables
* @returns {{region: *}}
*/
getCredentials() {
if (this.cachedCredentials) {
// We have already created the credentials object once, so return it.
return this.cachedCredentials;
}
const result = {};
const stageUpper = this.getStage() ? this.getStage().toUpperCase() : null;
// add specified credentials, overriding with more specific declarations
try {
impl.addProfileCredentials(result, 'default');
} catch (err) {
if (err.message !== 'Profile default does not exist') {
throw err;
}
}
impl.addCredentials(result, this.serverless.service.provider.credentials); // config creds
if (this.serverless.service.provider.profile && !this.options['aws-profile']) {
// config profile
impl.addProfileCredentials(result, this.serverless.service.provider.profile);
}
impl.addEnvironmentCredentials(result, 'AWS'); // creds for all stages
impl.addEnvironmentProfile(result, 'AWS');
impl.addEnvironmentCredentials(result, `AWS_${stageUpper}`); // stage specific creds
impl.addEnvironmentProfile(result, `AWS_${stageUpper}`);
if (this.options['aws-profile']) {
impl.addProfileCredentials(result, this.options['aws-profile']); // CLI option profile
}
const deploymentBucketObject = this.serverless.service.provider.deploymentBucketObject;
if (
deploymentBucketObject &&
deploymentBucketObject.serverSideEncryption &&
deploymentBucketObject.serverSideEncryption === 'aws:kms'
) {
result.signatureVersion = 'v4';
}
// Store the credentials to avoid creating them again (messes up MFA).
this.cachedCredentials = result;
return result;
}
canUseS3TransferAcceleration(service, method) {
// TODO enable more S3 APIs?
return (
service === 'S3' &&
['upload', 'putObject'].indexOf(method) !== -1 &&
this.isS3TransferAccelerationEnabled()
);
}
// This function will be used to block the addition of transfer acceleration options
// to the cloudformation template for regions where acceleration is not supported (ie, govcloud)
isS3TransferAccelerationSupported() {
// Only enable s3 transfer acceleration for standard regions (non govcloud/china)
// since those regions do not yet support it
const endpoint = getS3EndpointForRegion(this.getRegion());
return endpoint === 's3.amazonaws.com';
}
isS3TransferAccelerationEnabled() {
return !!this.options['aws-s3-accelerate'];
}
isS3TransferAccelerationDisabled() {
return this.options['aws-s3-accelerate'] === false;
}
disableTransferAccelerationForCurrentDeploy() {
delete this.options['aws-s3-accelerate'];
}
enableS3TransferAcceleration(credentials) {
this.serverless.cli.log('Using S3 Transfer Acceleration Endpoint...');
credentials.useAccelerateEndpoint = true; // eslint-disable-line no-param-reassign
}
getValues(source, paths) {
return paths.map(path => ({
path,
value: _.get(source, path.join('.')),
}));
}
firstValue(values) {
return values.reduce((result, current) => {
return result.value ? result : current;
}, {});
}
getRegionSourceValue() {
const values = this.getValues(this, [
['options', 'region'],
['serverless', 'config', 'region'],
['serverless', 'service', 'provider', 'region'],
]);
return this.firstValue(values);
}
getRegion() {
const defaultRegion = 'us-east-1';
const regionSourceValue = this.getRegionSourceValue();
return regionSourceValue.value || defaultRegion;
}
getRuntimeSourceValue() {
const values = this.getValues(this, [['serverless', 'service', 'provider', 'runtime']]);
return this.firstValue(values);
}
getRuntime(runtime) {
const defaultRuntime = 'nodejs12.x';
const runtimeSourceValue = this.getRuntimeSourceValue();
return runtime || runtimeSourceValue.value || defaultRuntime;
}
getProfileSourceValue() {
const values = this.getValues(this, [
['options', 'aws-profile'],
['options', 'profile'],
['serverless', 'config', 'profile'],
['serverless', 'service', 'provider', 'profile'],
]);
const firstVal = this.firstValue(values);
return firstVal ? firstVal.value : null;
}
getProfile() {
return this.getProfileSourceValue();
}
getServerlessDeploymentBucketName() {
if (this.serverless.service.provider.deploymentBucket) {
return BbPromise.resolve(this.serverless.service.provider.deploymentBucket);
}
return this.request('CloudFormation', 'describeStackResource', {
StackName: this.naming.getStackName(),
LogicalResourceId: this.naming.getDeploymentBucketLogicalId(),
}).then(result => result.StackResourceDetail.PhysicalResourceId);
}
getDeploymentPrefix() {
const provider = this.serverless.service.provider;
if (provider.deploymentPrefix === null || provider.deploymentPrefix === undefined) {
return 'serverless';
}
return `${provider.deploymentPrefix}`;
}
resolveFunctionArn(functionAddress) {
if (isLambdaArn(functionAddress)) return functionAddress;
const functionData = this.serverless.service.getFunction(functionAddress);
if (functionData) {
const logicalId = this.naming.getLambdaLogicalId(functionAddress);
const alias = functionData.targetAlias;
const arnGetter = { 'Fn::GetAtt': [logicalId, 'Arn'] };
if (!alias) return arnGetter;
return { 'Fn::Join': [':', [arnGetter, alias.name]] };
}
throw new Error(`Unrecognized function address ${functionAddress}`);
}
resolveFunctionIamRoleResourceName(functionObj) {
const customRole = functionObj.role || this.serverless.service.provider.role;
if (customRole) {
if (typeof customRole === 'string') {
// check whether the custom role is an ARN
if (customRole.includes(':')) return null;
return customRole;
}
if (
// otherwise, check if we have an in-service reference to a role ARN
customRole['Fn::GetAtt'] &&
Array.isArray(customRole['Fn::GetAtt']) &&
customRole['Fn::GetAtt'].length === 2 &&
typeof customRole['Fn::GetAtt'][0] === 'string' &&
typeof customRole['Fn::GetAtt'][1] === 'string' &&
customRole['Fn::GetAtt'][1] === 'Arn'
) {
return customRole['Fn::GetAtt'][0];
}
if (
// otherwise, check if we have an import or parameters ref
customRole['Fn::ImportValue'] ||
customRole.Ref
) {
return null;
}
}
return 'IamRoleLambdaExecution';
}
getAlbTargetGroupPrefix() {
const provider = this.serverless.service.provider;
if (!provider.alb || !provider.alb.targetGroupPrefix) {
return '';
}